UV Index in Changtian, China

Last updated: May 3, 2025

Awareness of the UV Index is crucial for residents and visitors in Changtian, China, where the subtropical climate results in significant sun exposure throughout the year. Understanding UV levels is essential for preventing sunburn and maintaining skin health, especially when peak indices can reach as high as 13 during midday hours. With early morning levels starting low and quickly rising, the risk of harmful UV radiation becomes particularly pronounced between 10:00 AM and 2:00 PM, making it important to plan outdoor activities accordingly and take protective measures to safeguard your skin.

Hourly UV Index in Changtian

As the sun rises, the UV Index starts off low at 1 at 07:00 but quickly gains momentum. By 09:00, the index surges to 6, signaling the onset of midday intensity. The peak arrives at 12:00, where it reaches a striking 13—a time when sun safety becomes crucial. As the afternoon rolls in, the levels gradually taper, dipping to 10 by 14:00, then dropping to 6 by 15:00. A gentle decline continues into the evening, with readings falling to 1 at 18:00 and finally settling at 0 by 19:00. It's a vivid reminder of the sun's power; staying protected during the peak hours is essential!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	6	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Changtian

Throughout the year, UV exposure changes significantly, with the highest risk months typically from March to August, where UV Index values consistently reach the extreme level of 12 or 13. Notably, March, April, May, June, July, and August all present a burn time of just 10 minutes, indicating a critical need for sun protection during these periods. Conversely, UV Index values decrease in January, October, November, and December, when exposure is categorized as high or very high with longer burn times of 15 to 25 minutes. Visitors and residents are strongly advised to adopt sun safety measures—such as wearing sunscreen, protective clothing, and seeking shade during peak hours—especially during the extreme UV months to mitigate the risk of skin damage.

Monthly Maximum UV Index for Changtian, China

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Changtian. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Changtian, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Changtian UV Index with Other China Cities

The table above highlights how UV exposure in Changtian compares to other major locations across China. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Changtian's solar exposure compared to other cities in China. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Beijing UVI	2	3	5	8	9	9	10	9	7	6	4	2
Chengdu UVI	5	6	8	10	12	11	11	10	11	8	6	4
Shanghai UVI	5	6	8	10	10	11	12	11	11	8	6	4
Guangzhou UVI	7	9	11	12	13	13	13	12	11	10	9	7
Changtian	7	9	12	12	13	12	13	13	11	10	9	7
Shenzhen UVI	7	10	12	12	14	13	13	13	12	11	9	7